CN104948211A - Large mining height end-mining net hanging process - Google Patents
Large mining height end-mining net hanging process Download PDFInfo
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Abstract
The invention relates to a coal mining technology, in particular to a large mining height end-mining net hanging process. The problem of flexible net roll hanging in the large mining height last phase in coal mine mining work is solved. The large mining height end-mining net hanging process comprises the steps that a flexible net roll and a support set are arranged in parallel, all support stand columns are provided with manual winches respectively, the manual winches are connected with a steel wire rope, and a pulley is arranged on a top beam; singular frames hang a net, and even-number frames wrap the net; coal cutting is started, and the frames need to be pulled forwards after coal cutting; the winches are loosened, the steel wire rope is made to drop, the flexible net roll is put down and unfolded, a frame is pulled forwards, the upper side of the flexible net is fixed, in the frame pulling process, and part of the flexible net is unfolded and can be laid between a top plate and the support top beam; in the forward moving process of the hung net, transverse steel wire ropes and longitudinal steel wire ropes are hung below the flexible net, a framework is formed by the criss-cross steel wire ropes, and the flexible net is of a supported support dismantling channel structure. The processes that workers carry the net on the shoulder, lie on the net and mount the plate beam in the metal net process are reduced, and the labor intensity of the workers is greatly reduced. Above all, the steel wire ropes are innovatively used for enhancing the strength of the flexible net, and the safety of support dismantling work is guaranteed.
Description
Technical field
The present invention relates to a kind of coal winning technology, be specially a kind of high working face end and adopt linked network technique.
Background technology
during coal mine machinery melts and adopts,adopting that end, face adopts is the final tache of coal-face, be also that can the face end of adopting be adopted and be completed smoothly safely for the important step that frame prepares is removed in the face of adopting, and is related to that can mine normally be connected smoothly.Particularly large-mining-height working surface, mining height is large, and equipment is large, and roof conditions is complicated, selects correct last excavating technology most important.Technology is adopted at traditional high working face end, be coal-face arrived distance stop adopting line certain distance time, adopt close plating net and beat the method that anchor pole combines and fix top board.Need in operation manually to shoulder net, repeatedly enter scraper-trough conveyer linked network, upper beam slab, not only labour intensity is large, consuming time longer, and safety is not high.The flexible net having brought into use a kind of h to make at present, to replace wire lath, carry out the fixing top board of linked network operation, but how carrying out rapidly and efficiently linked network is one of technical issues that need to address in work.
Summary of the invention
The present invention is in order to solve in coal mining work, and the flexible net in high working face latter stage is wrapping with the problem of net, provides a kind of high working face end and adopts linked network technique.
Technical scheme of the present invention is, linked network technique is adopted at a kind of high working face end, and step comprises:
(1), erection stage, distance stops adopting line 20 meters of, flexible net volume and support group is be arranged in parallel, in all bracket upright post install a hand winch, connecting steel wire ropes on hand winch, back timber installs pulley; Single digit frame cat net, dual number digits frame blanket net; By the hand winch on single digit frame, flexible reel wire marginal portion is lifted, be suspended on the support anchor rod on top board, then by the hand winch on dual number digits frame, flexible reel wire is caught rise; Again by the wire rope of odd number frame cat net, become blanket net, under making top board, soar in space, ensures that coal-winning machine passes through smoothly;
(2), start coal cutting, need after having cut to try to stop people from fighting each other forward; Unclamp capstan winch, wire rope is fallen, put down by flexible net volume and launch, face guard is got;
(3), forward try to stop people from fighting each other, flexible net top is fixed, and in the process of trying to stop people from fighting each other, the flexible net of deploying portion can be taped against the position between top board and set cap,
(4) reach of, trying to stop people from fighting each other terminates, receive face guard, re-use hand winch to tighten up wire rope and risen by flexible net volume pocket, carry out next round circulation coal cutting, circulation coal cutting and lapping are until end is adopted at end, in linked network reach process, below flexible net, hang horizontal wire rope, and longitudinal steel wire rope, forming wire rope is in length and breadth skeleton, flexible net be support remove frame channel design.
Compared with prior art, technique of the present invention is adopted in process at end, creatively have employed the quick end that " flexible net+wire rope " combine and adopt linked network technique, adopt novel flexible net to replace conventional metals net, and flexible net on reinforce horizontal and vertical wire rope.Flexible net has very strong toughness, and tensile strength is higher, can not cause net fragmentation, distortion because of roof cracking or large area wall caving, contributes to improving the stability that construction is adopted at end.Install with means of transportation easy, greatly reduce the labour intensity of staff, the simple and safe coefficient of technique is high, does not need frequently to enter scraper-trough conveyer, time saving and energy saving, greatly increases work efficiency.Only need a linked network, safety improves greatly, and conventional metals network process end is adopted and approximately needed 7-8 days again, and this technique only needs 3-4 days.This technique last only needs worker stands on support, use capstan winch to draw in the net, and puts net.Both ensure that the intensity of net, in turn ensure that the speed of online.Decrease wire lath technique workman and shoulder net, the techniques such as net, upper plate-girder of lying prone, greatly alleviate the labour intensity of workman.The most important thing is that we innovatively use wire rope to strengthen the intensity of flexible net, also ensure that the safety of removing frame work like this.
Accompanying drawing explanation
Fig. 1 is one of present invention process block diagram
Fig. 2 is present invention process block diagram two
Fig. 3 is present invention process block diagram three
In figure: 1-bracket upright post, 2-hand winch, 3-rib, 4-coal-winning machine, 5-flexible net volume, 6-pulley, 7-wire rope, 8-hydraulic support group.
Detailed description of the invention
High working face, normally adopts, and does not need linked network, and the stage is adopted at end, (distance stops adopting line 20 meters of), needs to adjust mining height, reduces mining height, is beneficial to envelope side and top board linked network, flexible net volume, wide about 140 meters, grows up about 15 meters,
Linked network technique is adopted at a kind of high working face end, and step comprises:
(1), erection stage, as schematically shown in Figure 1, flexible net volume 5 and support group 8 be arranged in parallel, all bracket upright post 1 install hand winch 2 additional, back timber is installed pulley 6, wire rope 7 on hand winch on single digit support is through back timber pulley, and under wear flexible net volume 5, be fixed on back timber front end again, flexible net volume is caught, steel wire penetrating back timber pulley on hand winch on dual number digits support, more forward through water chestnut or the suspension ring of back timber front end, be finally directly fixedly connected with flexible net edge;
(2), start coal cutting, before coal-winning machine 4 coal cutting, operation sheet numerical digit hand winch reclaims wire rope together, and flexible net volume is held up, vacating space, coal-winning machine starts coal cutting, (coal cutting 0.8 meter of dark left and right); As schematically shown in Figure 1,
(3), try to stop people from fighting each other forward, after a coal cutting terminates, as schematically shown in Figure 2, unclamp hand winch, flexible net is put down, because flexible net is fixed on one side, flexible net is stretched out in decline, and reach of then trying to stop people from fighting each other (about 0.8 meter), in the process of reach, the top that the flexible net pulled open is brought into support directly contacts with top board (flexible net is laid about 0.8 meter)
(4), try to stop people from fighting each other to move forward and terminate, as schematically shown in Figure 3, more manually flexible reel wire is caught rise by capstan winch, vacates coal cutting passage, carries out next coal cutting, circulates and so forth, until end is adopted at end; In linked network reach process, below flexible net, every 500mm hangs wire rope horizontal together, after linked network terminates, then hangs longitudinal steel wire rope, hangs one longitudinal steel wire rope every 300mm.Forming wire rope is in length and breadth skeleton, flexible net be support remove frame channel design.
Specific operation process is as follows, and flexible net adopts and install hand winch additional in bracket upright post, is hung in support front-axle beam upper end.Before linked network, first by odd number support hand winch wire rope (with supporting can self-locking gib head) through the fixed pulley on set cap, more directly to hang over selvage wire rope through rear below flexible net volume 5.
Then regain even numbers support secondary protecting side plate to being 90 ° of Angle Position with one-level face guard, personnel by stair or stirrup on support secondary protecting side plate.Then at anchor pole place, top, even numbers support front, water chestnut and hoisting ring are installed.By the wire rope on even numbers support capstan winch successively through the water chestnut on the pulley on back timber and top, corresponding support front anchor pole or hoisting ring, finally directly hang over apart from the mesh of flexible net 300-500mm.Such formation odd number frame blanket net, the pattern that even numbers frame draws in the net, just can circulate coal cutting afterwards.
Vertical and horizontal wire rope is laid, and in order to ensure removing frame safety, we adopt fixed lateral and longitudinal steel wire rope in flexible net, to strengthen its intensity, ensure that the safety of removing frame is carried out smoothly.
(1) intensity of transverse steel wire rope reinforcing network: the 1m place launched in flexible net starts to join first time wire rope.Specific practice: more than disposable connection three times wire rope.From linked network, 1m place starts upper first time Φ 15.5mm wire rope, and every the upper wire rope of 500mm, first, second wire rope is first connected before linked network, then linked network is carried out, be convenient to connect wire rope, the later wire rope of the 3rd time distance second time wire rope 500mm(the 3rd time is connecting along place under the little face guard of support).Require: use bifilar 16# twine to twist together, kink spacing is not more than 300mm, and per pass kink is no less than three circles, and often plow wire rope spacing 500mm, about go up 25-27 and plow wire rope, wire rope is at each 1-2m that has more than needed out of frame head and tail termination frame.Can overlap if wire rope falls short of, wire rope lap segment is no less than 2m, and connects firm with being no less than 3 wire clips, and the lap segment of front and back wire rope twice staggers the distance of at least more than 10m as far as possible.
(2) intensity of longitudinal steel wire rope reinforcing network: after hanging net, wire rope one is fixed on the hoisting ring or water chestnut pushing up anchor pole place between every frame frame, cable wire end is firm with being no less than 1 wire clips connection, adjacent frame support secondary protecting side plate is first regained to being 90 ° of Angle Position with one-level face guard when hanging wire rope, loadlock rack, and be responsible for nursing blocking wedge by sight recluse person.Support conditions is checked by footman cadre, and perform " tapping " look between frame and front-axle beam live carbon live cash, after confirming safety, personnel by stair or stirrup on support secondary protecting side plate, system hangs up properly safety belt, being hung over by wire rope between frame pushes up on the water chestnut of anchor pole, and between whole operational period, personnel must be noted that erect-position, forbids to stand on two frame front-axle beam centre positions.Longitudinal steel wire rope connects the bifilar 16# twine kink of use, and kink spacing is not more than 300mm, and per pass kink is no less than three circles.
Claims (2)
1. a linked network technique is adopted at high working face end, it is characterized in that step comprises:
1), erection stage, distance stops adopting line 20 meters of, flexible net volume and support group is be arranged in parallel, in all bracket upright post install a hand winch, connecting steel wire ropes on hand winch, back timber installs pulley; Single digit frame cat net, dual number digits frame blanket net; By the hand winch on single digit frame, flexible reel wire marginal portion is lifted, be suspended on the support anchor rod on top board, then by the hand winch on dual number digits frame, flexible reel wire is caught rise; Again by the wire rope of odd number frame cat net, become blanket net, under making top board, soar in space, ensures that coal-winning machine passes through smoothly;
2), start coal cutting, need after having cut to try to stop people from fighting each other forward; Unclamp capstan winch, wire rope is fallen, put down by flexible net volume and launch, face guard is got;
3), forward try to stop people from fighting each other, flexible net top is fixed, and in the process of trying to stop people from fighting each other, the flexible net of deploying portion can be taped against the position between top board and set cap,
4) reach of, trying to stop people from fighting each other terminates, receive face guard, re-use hand winch to tighten up wire rope and risen by flexible net volume pocket, carry out next round circulation coal cutting, circulation coal cutting and lapping are until end is adopted at end, in linked network reach process, below flexible net, hang horizontal wire rope, and longitudinal steel wire rope, forming wire rope is in length and breadth skeleton, flexible net be support remove frame channel design.
2. linked network technique is adopted at high working face end according to claim 1, it is characterized in that step comprises:
1), erection stage, flexible net volume (5) and support group (8) be arranged in parallel, all bracket upright post (1) install hand winch (2) additional, back timber is installed pulley (6), wire rope (7) on hand winch on single digit support is through back timber pulley, and under wear flexible net volume (5), be fixed on back timber front end again, flexible net volume is caught, steel wire penetrating back timber pulley on hand winch on dual number digits support, again forward through water chestnut or the suspension ring of back timber front end, be finally directly fixedly connected with flexible net edge;
2), start coal cutting, before coal-winning machine (4) coal cutting, operation sheet numerical digit hand winch reclaims wire rope together, and flexible net volume is held up, vacating space, coal-winning machine starts coal cutting,
3), try to stop people from fighting each other forward, after a coal cutting terminates, unclamp hand winch, flexible net put down, because flexible net is fixed, flexible net is stretched out in decline, then to try to stop people from fighting each other reach, in the process of reach, the top that the flexible net pulled open is brought into support directly contacts with top board
4), try to stop people from fighting each other to move forward and terminate, more manually flexible reel wire is caught rise by capstan winch, vacates coal cutting passage, carries out next coal cutting, circulates and so forth, until end is adopted at end; In linked network reach process, below flexible net, every 500mm hangs wire rope horizontal together, after linked network terminates, then hangs longitudinal steel wire rope, hangs one longitudinal steel wire rope every 300mm, and the wire rope formed in length and breadth is skeleton, flexible net be support remove frame channel design.
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| CN201510287282.2A CN104948211A (en) | 2015-05-31 | 2015-05-31 | Large mining height end-mining net hanging process |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569698A (en) * | 2016-03-15 | 2016-05-11 | 兖州煤业股份有限公司 | Long-distance net setting and drawing device at coal face |
| CN106351679A (en) * | 2016-11-09 | 2017-01-25 | 安徽理工大学 | Soil similar coal working face fully sealed shield support device |
| CN106401623A (en) * | 2016-11-09 | 2017-02-15 | 安徽理工大学 | Full-closed coal mining device for soil-like coal working face and coal mining method of full-closed coal mining device |
| CN107023310A (en) * | 2017-06-09 | 2017-08-08 | 浩珂科技有限公司 | The separate zone production quick lapping technique of large area |
| CN108104858A (en) * | 2017-11-24 | 2018-06-01 | 中国平煤神马能源化工集团有限责任公司 | It is a kind of can before frame lapping joint support top side protecting mechanism |
| CN108775250A (en) * | 2018-08-10 | 2018-11-09 | 北京天地华泰矿业管理股份有限公司 | Adopt online Lanyard device and equipment recovery method in a kind of end applied to coal mine fully-mechanized mining working |
| CN108952779A (en) * | 2018-07-31 | 2018-12-07 | 中国神华能源股份有限公司 | Gib and device for layering |
| CN109931084A (en) * | 2017-12-19 | 2019-06-25 | 淮北矿业股份有限公司 | A kind of laying method of coal working face protective net |
| CN110454163A (en) * | 2019-08-30 | 2019-11-15 | 陕煤集团神木红柳林矿业有限公司 | A kind of quick end of fully-mechanized mining working, which is adopted, withdraws Ji Cheongju coal technique |
| CN110985075A (en) * | 2019-12-27 | 2020-04-10 | 中国矿业大学(北京) | Automatic flexible net releasing device for longwall coal face in final mining stage and using method thereof |
| CN112196529A (en) * | 2020-09-30 | 2021-01-08 | 兖州煤业股份有限公司 | Large-height-difference advanced mining stop process |
| CN115263397A (en) * | 2022-07-28 | 2022-11-01 | 河南赢创矿山工程有限公司 | Hydraulic device for temporary support of coal mine tunnel excavation working face |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569698A (en) * | 2016-03-15 | 2016-05-11 | 兖州煤业股份有限公司 | Long-distance net setting and drawing device at coal face |
| CN106351679A (en) * | 2016-11-09 | 2017-01-25 | 安徽理工大学 | Soil similar coal working face fully sealed shield support device |
| CN106401623A (en) * | 2016-11-09 | 2017-02-15 | 安徽理工大学 | Full-closed coal mining device for soil-like coal working face and coal mining method of full-closed coal mining device |
| WO2018086327A1 (en) * | 2016-11-09 | 2018-05-17 | 安徽理工大学 | Full-closed coal mining device for soil-like coal working face and coal mining method thereof |
| CN107023310A (en) * | 2017-06-09 | 2017-08-08 | 浩珂科技有限公司 | The separate zone production quick lapping technique of large area |
| CN108104858A (en) * | 2017-11-24 | 2018-06-01 | 中国平煤神马能源化工集团有限责任公司 | It is a kind of can before frame lapping joint support top side protecting mechanism |
| CN109931084A (en) * | 2017-12-19 | 2019-06-25 | 淮北矿业股份有限公司 | A kind of laying method of coal working face protective net |
| CN108952779A (en) * | 2018-07-31 | 2018-12-07 | 中国神华能源股份有限公司 | Gib and device for layering |
| CN108952779B (en) * | 2018-07-31 | 2020-04-03 | 中国神华能源股份有限公司 | Temporary support and lapping device |
| CN108775250A (en) * | 2018-08-10 | 2018-11-09 | 北京天地华泰矿业管理股份有限公司 | Adopt online Lanyard device and equipment recovery method in a kind of end applied to coal mine fully-mechanized mining working |
| CN108775250B (en) * | 2018-08-10 | 2024-02-13 | 北京天地华泰矿业管理股份有限公司 | Last-mining net-surfing rope hanging device applied to fully-mechanized coal mining face and equipment recovery method |
| CN110454163A (en) * | 2019-08-30 | 2019-11-15 | 陕煤集团神木红柳林矿业有限公司 | A kind of quick end of fully-mechanized mining working, which is adopted, withdraws Ji Cheongju coal technique |
| CN110454163B (en) * | 2019-08-30 | 2024-03-26 | 陕煤集团神木红柳林矿业有限公司 | Rapid non-mining withdrawing and coal cleaning process for fully mechanized coal mining face |
| CN110985075A (en) * | 2019-12-27 | 2020-04-10 | 中国矿业大学(北京) | Automatic flexible net releasing device for longwall coal face in final mining stage and using method thereof |
| CN112196529A (en) * | 2020-09-30 | 2021-01-08 | 兖州煤业股份有限公司 | Large-height-difference advanced mining stop process |
| CN115263397A (en) * | 2022-07-28 | 2022-11-01 | 河南赢创矿山工程有限公司 | Hydraulic device for temporary support of coal mine tunnel excavation working face |
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Application publication date: 20150930 |
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